/*
 * Copyright 2002-2019 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.springframework.expression.spel.ast;

/**
 * Captures primitive types and their corresponding class objects, plus one special entry
 * that represents all reference (non-primitive) types.
 *
 * @author Andy Clement
 */
public enum TypeCode {

    /**
     * An {@link Object}.
     */
    OBJECT(Object.class),

    /**
     * A {@code boolean}.
     */
    BOOLEAN(Boolean.TYPE),

    /**
     * A {@code byte}.
     */
    BYTE(Byte.TYPE),

    /**
     * A {@code char}.
     */
    CHAR(Character.TYPE),

    /**
     * A {@code double}.
     */
    DOUBLE(Double.TYPE),

    /**
     * A {@code float}.
     */
    FLOAT(Float.TYPE),

    /**
     * An {@code int}.
     */
    INT(Integer.TYPE),

    /**
     * A {@code long}.
     */
    LONG(Long.TYPE),

    /**
     * An {@link Object}.
     */
    SHORT(Short.TYPE);


    private Class<?> type;


    TypeCode(Class<?> type) {
        this.type = type;
    }

    public static TypeCode forName(String name) {
        TypeCode[] tcs = values();
        for (int i = 1; i < tcs.length; i++) {
            if (tcs[i].name().equalsIgnoreCase(name)) {
                return tcs[i];
            }
        }
        return OBJECT;
    }

    public static TypeCode forClass(Class<?> clazz) {
        TypeCode[] allValues = TypeCode.values();
        for (TypeCode typeCode : allValues) {
            if (clazz == typeCode.getType()) {
                return typeCode;
            }
        }
        return OBJECT;
    }

    public Class<?> getType() {
        return this.type;
    }

}
